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19 Tests of coherent ICS code Simulations by NIU grad student Ivan Viti using Lienard-Wiechert solver written by Alex Sell of MIT. Work in progress. Examine radiation from many nanobunches Simulations are designed to study coherent radiation opening angle, bandwidth, and electron beam size effects. Emittance is set unrealistically small to remove its effect. Purpose is to explore radiation properties. W.S. Graves, MIT, March 2013

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20 Radiation from many nanobunches Bandwidth tends to 1/(number bunches) for large numbers of bunches Opening angle tends to W.S. Graves, MIT, March 2013